HomeEmission Control > SensorsSpectra MA140 Mass Air Flow Sensor
Part #: MA140

Spectra MA140 Mass Air Flow Sensor

6 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: INFINITI and Nissan, I35, G35, and Maxima
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Reliable Mass Air Flow Sensor for Infiniti and Nissan Vehicles

The Spectra MA140 Mass Air Flow Sensor is designed to provide accurate airflow measurement for your Infiniti G35, Nissan I35, and Nissan Maxima. This sensor helps maintain optimal engine performance by ensuring precise air intake readings.

  • Direct replacement for OEM mass air flow sensors
  • Compatible with Infiniti G35, Nissan I35, and Nissan Maxima models
  • Part number MA140 for easy identification and fitment
  • Ensures accurate air-fuel mixture for efficient combustion
  • Durable construction for consistent sensor performance

Product Details and Compatibility

The Spectra MA140 Mass Air Flow Sensor is engineered to meet the specifications required by Infiniti and Nissan vehicles, specifically the G35, I35, and Maxima models. This sensor measures the volume and density of air entering the engine, which is critical for the engine control unit (ECU) to calculate the correct fuel injection. Using the correct MA140 sensor ensures your vehicle maintains proper air-fuel ratios, which can improve drivability and reduce emissions.

Common Applications and Problem Resolution

  • Resolves rough idling and engine hesitation issues
  • Corrects poor fuel economy caused by inaccurate airflow readings
  • Eliminates check engine light triggers related to airflow sensor faults
  • Improves acceleration response and engine performance
  • Prevents stalling and engine misfires linked to faulty sensors

Installation Notes and Tips

Installation of the Spectra MA140 sensor is straightforward and designed to be a direct fit replacement. Before installation, ensure the engine is cool and disconnect the battery to avoid electrical issues. Carefully remove the old sensor and clean the surrounding area to prevent contamination. Connect the new sensor securely and verify all electrical connections are tight. After installation, it is recommended to clear any diagnostic trouble codes and perform a test drive to confirm proper operation.

Quality Assurance and Warranty Information

Spectra manufactures the MA140 Mass Air Flow Sensor to meet or exceed OEM standards for quality and durability. Each sensor undergoes rigorous testing to ensure reliable performance in emission control systems. While specific warranty details may vary, Spectra typically offers a limited warranty covering defects in materials and workmanship. Refer to the product documentation for exact warranty terms.

This part fits 6 vehicles. Search below:

YearMakeModelBody TypeLitersCylindersPositionNotes
2004INFINITII353.5LV6N/AMass Air Flow Sensor with integrated housing
2003INFINITIG35Sedan3.5LV6N/AMass Air Flow Sensor with integrated housing
2003INFINITII353.5LV6N/AMass Air Flow Sensor with integrated housing
2003NissanMaxima3.5LV6N/ASensor Module w/Housing; To 12/2002
2002INFINITII353.5LV6N/ASensor Module w/Housing; From 01/2002
2002NissanMaxima3.5LV6N/ASensor Module w/Housing; From 04/2002

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

157032415703251580734221028M221028P22680AM60024511905S27196417387410147839438610147917811MA1022MAF0097MAF0099MAF10216MAF1091MAF1180MAF610147MAS0144MAS0153MF20096MF20096TMF21028MF21028NMF21028TSU6484XTP410147

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.